Diagrams; Notes For Printed Wiring Boards And Schematic Diagrams - Sony TA-FA777ES Service Manual

4-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block.)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
NOTE: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark: POWER ON
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
I
: PHONO
SECTION 4

DIAGRAMS

Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
• Indication of transistor.
Q
B C E
These are omitted.
Q
B C E
These are omitted.
• Circuit Boards Location
MAIN-B (L) board
PRO. LED board
HP board
TONE CONTROL board
FUNCTION SW board
7 7
OUTLET board
SP TM board
PS-PRE board
INPUT board
MAIN-A board
RV board
MAIN-B (R) board
PS board
REC OUT board
BALANCE board